. >>> general david petraeus handed over forces in afghanistan today to general john allen. petraeus steps down after one year in charge of 140,000 international troops in the country. he's retiring from the army to become director of the cia. he will see the draw down of u.s. forces that started earlier this month. >>> under scoring the continued violence in afghanistan while the hand over ceremony was taking place in kabul. three native troops were killed. nato did not identify the nationalities of the troops killed. most of the troops in the east are american. >>> police near san diego are investigating two deaths at the mansion of a pharmaceutical ceo. six-year-old mack died yesterday almost a week after falling down the stairs of the mansion of his father. two days after the boy's fall, jonas' girlfriend was found dead hanging nude from a balcony with her hands and feet bound. they have not ruled out suicide in the girlfriend's death and have not found a connection between the two. neighbors are concerned. >> it's a surprise absolutely. we think of ourselves as a sleepy